Plate 513. I11, looking north. The passage runs two paces to a wall. An opening to the right. The air is fresher here.Plate 514. I11, looking east. The passage runs three paces to a wall. Openings to the left and right. The air is fresher here.Plate 515. I11, looking south. A wall one pace ahead. An opening to the left. The air is fresher here.Plate 516. I11, looking west. A wall, close enough to touch. Openings to the left and right. The air is fresher here.